1996 Volume 36 Issue 2 Pages 143-149
Nitride capacities (CN=(mass%N)·PO23/4/PN21/2) in the CaO-Al2O3-MgO(ZrO2) and CaO-SiO2-MgO(TiOx) ternary slags were measured at 1873K by a gas-slag equilibration technique, using an Mo, Al2O3 or MgO crucible under controlled partial pressures of oxygen (log(PO2/atm)=-11--14) and nitrogen (PN2=0.9 atm). The CN values increased with increasing the contents of nitride former oxides. The CN values in the CaO-AlO1.5-MOx (MOx=MgO, SiO2, ZrO2, TiOx) slags at XCaO/XAlO1.5=0.4-0.7 increased in the order of MgO<SiO2<ZrO2<TiOx and those in the CaO-SiO2-MOx (MOx=MgO, AlO1.5, TiOx) slags at XCaO/XSiO2=1.0-1.5 increased in the order of MgO<AlO1.5<TiOx at a given MOx content.
